commit de811d1f51c96828a1841b769d717afe82b0dde3
author Vyacheslav Zakharin <vyacheslav.p.zakharin@intel.com> Wed Jul 10 17:10:05 2019 +0000
committer Vyacheslav Zakharin <vyacheslav.p.zakharin@intel.com> Wed Jul 10 17:10:05 2019 +0000
tree c95fc3f2f8d5bb0b5cbffe46f5bc408a0d9b9b1b
parent 1abaeece719c99ad9b408257b71c19c62db438cc

[clang] Preserve names of addrspacecast'ed values.

Differential Revision: https://reviews.llvm.org/D63846

llvm-svn: 365666

clang/lib/CodeGen/TargetInfo.cpp

diff --git a/clang/lib/CodeGen/TargetInfo.cpp b/clang/lib/CodeGen/TargetInfo.cpp
index 249de6b..458b9a6 100644
--- a/clang/lib/CodeGen/TargetInfo.cpp
+++ b/clang/lib/CodeGen/TargetInfo.cpp
@@ -449,7 +449,9 @@
   // space, an address space conversion may end up as a bitcast.
   if (auto *C = dyn_cast<llvm::Constant>(Src))
     return performAddrSpaceCast(CGF.CGM, C, SrcAddr, DestAddr, DestTy);
-  return CGF.Builder.CreatePointerBitCastOrAddrSpaceCast(Src, DestTy);
+  // Try to preserve the source's name to make IR more readable.
+  return CGF.Builder.CreatePointerBitCastOrAddrSpaceCast(
+      Src, DestTy, Src->hasName() ? Src->getName() + ".ascast" : "");
 }
 
 llvm::Constant *